Hi Marco, just providing some diagnostic info that I hope can help you solve the issue. In my experience, the problem occurs with GPF.createProduct(). When using ProductIO.readProduct and ProductIO.writeProduct the memory issues do not appear provided you use the .dispose() method on all products you read. After using product = GPF.createProduct() the product.dispose() method is ineffective - the memory is not released. So perhaps the problem has to do with using the dispose method on the products created using GPF. Hope it helps!